gas meter,gas meter,Co gas flow meter,flowmeter: No movable part:0.5% 4~20mA,remote control 6~4000mm gas meter,air flow ... pressure flow meter. It was widely used in fields of gas, natural gas, petroleum industry, chemical engineering, energy industry, food industry ... inserted type or threaded structure.d. Jacket insulation type (heat conducting type) is suitable for applications in which preheating and ...